2026年2月2日 / 美国东部时间下午6:56 / 哥伦比亚广播公司新闻
美联航正计划进行重大技术更新，将于周三凌晨关闭其在线预订系统。
该航空公司敦促周三有航班计划的乘客在周二通过美联航官网或移动应用办理登机手续，以避免遇到问题。美联航预计系统停机将持续约四个半小时，从美国东部时间周三凌晨2:30开始，至早上6:00结束。
美联航主页上的一则通知告知旅客，该公司正在”进行计划内的技术升级”，在此期间，其许多网页和应用服务将无法使用，包括航空公司员工使用的服务。
美联航正在对其老化的主机航班预订系统（称为Shares）进行现代化改造。此次升级需要美联航将预订数据从其目前位于北卡罗来纳州的数据中心转移到芝加哥的一个高科技设施，该航空公司表示这将提高系统可靠性。
以下是美联航客户需要了解的关于预订系统升级的信息：
如果我周三要出行？
美联航的航班时刻表将于周三凌晨开始暂时无法使用。客户也将无法进行新预订、取消预订、办理登机手续或查询行程。
因此，航空公司敦促所有计划周三上午出行的乘客在周二办理登机手续。同时，旅客也应在周二托运行李，通常旅客可在出发前四小时办理托运行李。
此次预订系统更新已筹划了一段时间，美联航数月前已取消受影响的航班，当时通知了约600个航班的旅客。
客户仍可在2月4日美国东部时间凌晨2:30之前预订、完成登机手续或更改行程，或者在数据传输完成后进行操作。
可能会出什么问题？
美联航告诉哥伦比亚广播公司新闻，其已演练了数据迁移过程，因此一切应顺利进行。旅行专家预计干扰相对较小。
航班优惠网站Going.com的创始人兼首席执行官斯科特·凯斯（Scott Keyes）告诉哥伦比亚广播公司新闻：”如果您在深夜无法搜索航班，不要惊慌。系统很快就会恢复正常。”
当然，如果升级未能按计划进行，可能会给客户带来麻烦。大约十年前，西南航空公司遭遇了一次电脑系统故障，持续了数天，导致数百个航班取消和数千个航班延误。
编辑：Alain Sherter
克里斯·范·克利夫为本文报道提供了帮助。
https://www.cbsnews.com/chicago/video/united-warns-travelers-of-planned-system-outage-wednesday/
United Airlines is set to upgrade its reservation system. Here’s what that means for travelers.
February 2, 2026 / 6:56 PM EST / CBS News
United Airlines is planning a major technology update that will take down its online reservation system early Wednesday.
The carrier is urging passengers with flights scheduled to depart on Wednesday to check in via United’s website or mobile app on Tuesday to avoid encountering problems. United expects the outage to last roughly four and a half hours, beginning Wednesday at 2:30 a.m. EDT and lasting until 6 a.m. EDT.
An alert on United’s homepage informs travelers that it is “conducting a planned technology upgrade” and that many of its web and app services will not be available during that time, including for employees of the airline.
United is modernizing its aging mainframe flight reservation system, known as Shares. The upgrade requires the airline to transfer reservation data from its current data center in North Carolina to a more high-tech facility in Chicago that the airline said will improve reliability.
Here’s what United customers should know about United’s reservation system upgrade.
What if I am flying on Wednesday?
United’s flight schedule will be temporarily unavailable starting early Wednesday morning. Customers also won’t be able to make new reservations, cancel bookings, check in for flights or retrieve their itineraries.
As such, the airline is urging anyone scheduled to fly on Wednesday morning to check in on Tuesday. That is also when passengers should check bags, which fliers can typically do up to four hours before departure.
The reservation system refresh has been planned for some time, with United canceling impacted flights months ago. The airline notified customers of the changes, affecting roughly 600 flights, at the time.
Customers can still book, complete check-in or make changes to their trips prior to Feb. 4 at 2:30 a.m. EDT, or once the data transfer is completed.
What could go wrong?
United has rehearsed the data migration process, so things should go smoothly, the airline told CBS News. Travel experts expect relatively little disruption.
“Don’t freak out if you can’t search for flights in the middle of the night,” Scott Keyes, founder and CEO of flight deals website Going.com, told CBS News. “It will come back online soon.’
Of course, if the upgrade doesn’t go as planned, it could spell headaches for customers. Roughly a decade ago, Southwest Airlines suffered a computer outage that dragged on for days, leading to hundreds of flight cancellations and thousands more delays.
Edited by Alain Sherter
Kris Van Cleave contributed to this report.
https://www.cbsnews.com/chicago/video/united-warns-travelers-of-planned-system-outage-wednesday/
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